From 763ceacafb819a0647a85409f1ea50255d41493d Mon Sep 17 00:00:00 2001
From: "Marshall T. Vandegrift" <llasram@gmail.com>
Date: Wed, 28 Jan 2009 12:04:22 -0500
Subject: [PATCH] Fix #1720.  Fix HTML comments which aren't valid XML
 comments.

---
 src/calibre/ebooks/oeb/base.py | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/calibre/ebooks/oeb/base.py b/src/calibre/ebooks/oeb/base.py
index 8b505ae4aa..0cfdec6355 100644
--- a/src/calibre/ebooks/oeb/base.py
+++ b/src/calibre/ebooks/oeb/base.py
@@ -353,9 +353,13 @@ class Manifest(object):
                 try:
                     data = etree.fromstring(data)
                 except etree.XMLSyntaxError:
+                    # TODO: Factor out HTML->XML coercion
                     self.oeb.logger.warn('Parsing file %r as HTML' % self.href)
                     data = html.fromstring(data)
                     data.attrib.pop('xmlns', None)
+                    for elem in data.iter(tag=etree.Comment):
+                        if elem.text:
+                            elem.text = elem.text.strip('-')
                     data = etree.tostring(data, encoding=unicode)
                     data = etree.fromstring(data)
             # Force into the XHTML namespace